Folding machine



' Patented Sept. `21, 1926,'.

UNIT ED [STAT Es q SANFORD L. orinnrnior TROY, NEW YORK, AssIGNOR 4To OLUE'r'r, PEABODY a oo.; 1No.,..oF-rROY,- NEW YORK, A'ooRroRarrON''or- NEWnYORK.

`FOLDING MOHINR.

A.application mea December This invention plertainsto pressing and .folding machines' of that class employed 1n the commercial production of collars, relatingV particularly to means for accurately mortise-locking the points and 'evenly turning the edges to secure smooth yand unywrinkled seams.

It is very important forming a` mo'rtise f, lock thatthe primary fold be made 1n exact relation to the main or secondaryv folds;

otherwise imperfect points will result. V.Heretofore the primary'fold has been madedl- .rectly with the'fingers orl With a device carried in the fingers of the operator. Ob-v viously with. this method accuracy in form-I ing the primary fold is dependentfwholly upon the individual skill of the operators and inevitably cannot -be precise even though the operators be .most skilled.

- The objects'of th'pre'sent invention are to providejmeans vwhereby in forming mor-v tise locks on the ends of collars the primary `fold Will at all times be made ina predeterfout of rangev of the dieV When released; to provide a movable claW having al heat insu- `llated surface to protect the fingers Yof the operator; to provide a clavv attached'to andVA mined relationfto the main folds to provide a movableclaW Whichautomatically moves made a part of the folder plate for accuratelyfoldingf the'collar; and to` provide 'a device Wliicli `Will be simple'in construction and efficient in operation. y A .v v

In, order to fold collar blanks accurately I have devised the present improvement for.l attachment tothe folding plates to assurey lcorrect turning ofthe primary' fold, VThis improved means comprises Yabutine'nts fo-rV holding :the blanky on the bed plate andV table in correct position and means on the foldingV plates for accurately turning the primary fold in the collar preliminary to the actuation of the die and folder plates. .y v y V One embodimentfor carrying this kinvention into effect is shovvnin' the accompany-L' ping. drawings in which,-

Fig. l is a planviewl ofthe folding ma i chine Withv parts omitted;

F ig.- 2 is a section on line 24-2 of l" with the claw in retracted position;

Fig. 8 is aV View similar to Fig. 2 with .theclavv in folding position; y Figs. 4:, 5l and 6- are detail plan views of the .presser and folderplates illustrating suc'- cessive steps in making the mortiselock afterk the primary fold I has been made Fig. 7 `isa fragmentary plan View ofla colar `blank' with va iprimary fold: therein; an f f VVFig. 8V isa' fragmentary plan vieW ofthe collary blank after thefmain or folds have been turned.v t

` secondary Th'se'pressing and yfolding Lmachinejsr are.,Vv i 1n general of Well known construction, com-I prisiug aframe a 'heated'bed vplate `1,

mounted in a central. openingin the frame,

a pre'sser'arm 2 and 'folding plates 3- and .4.y

vThe t'Wo folding plates are practically i`den-.,.

tical in 'constructiomy except that one is adapted to fold the right ends of the "Collars, and the other is `adapted to fold the le'ftj prises a thin Ymetal Shel-Lt4 5- contoured",onits inner edges toconforin'with the 'correspondf ing edges of'the'co'llar'blanks 'and die; )This base sheet is secured tothe under sideof a heavier plate `6 having araised A,extension 7 Vslotted at 8 in 'order to be adjustably con-A neoted With a bar ,9.,byffm'eans .of clamping bolts and nuts l0 Anfec'centricfll engages With the jbarf9 for `oscillating each folding platey over the surfacezofft-hebed platev in theVV direction of the arrow.

contactV with the'bed plate.

ture ofthe frontend vbottom edges arepmor-` 4tise"`lockeld, suchv locking comprising vfirst makingl aprimary fold 1.3 V(]*`igs and 7)" of the., corner uponl the .main portion ofthe ouablank and'thepmaking the main' 0i-L secondary folds 14, [and 15 along i the front Y andbottom edge'sof the blankrespectively.'

The illustrationsfin Figs. 4L, 5 and 6' show the successive steps :informing the main or secondary folds after each primary `is made. The actuating eccentrics mojverthe folding plate-stilista substantially longitudinally to` Wards eachother tov form the end folds and then svving4 inwardly to Voverlap theedge fold onthe end folds.` It isvery' important that 7 )V and1 in order to accomplish this theco'llar correctly inrespectto thel s 016.313.112 are,v secured to the' frame 0V overlying thefo'lding `hars'to maintain the'sliding barsinclose A lThep:o'i'ntsfOf,thefcollarblank the 'juncfolding` platesby 1neans ofV abutment 19 Vand f gauge against which the fbottorn and'top l .edges fof theblank respeotively bear. Both theabutinentand gauge are attachedto the 3;; folding ".pl'ate, gthe former lbeingattached in any suitable manner ais by rivets 21a-nd `the latter being adjustably connected by means of an elongate s lot 22 and elampfsorvv '232 all as described 1n oopending application oit ioldinzg' pla there vis fixed J'by sereiv 24a prix 'ry 4'older ve'onep rising a supporting 15 plate 25"a'd 'a 'manually operable `claw-.26.

' vach claw pivot'ally `connected with its byth" presser die 32 (Fig's.` 4-6)i The elaW ed standauyjthe {S'ame angleas' the faeeeo of the siilprtir'igplate 'andals'o With an 1n- 'oh 11`aiidle-34. Atenson spring'has -6 "and the other AYend attached by Vto 'dei' Whenrleasedjby the'operator will [andere die. 'ra Jdie feidiagjpiate ae die 'ia- "t'erseetiiigg edges Which Contorni to 4the oon- A rof the "Collarjtheie is `an 'extended slot asia aider that die reideeapiate aan' dear y iiiovenitit 'towardy and 'from eachother as'.

v folds 13 andk when released 'are Y y eauy returned te ner-m1 paarden, edf atiende ef the'die aawhiehia defeated -dsaefaup'ea thetiankandiretaia it predetermined 4position v`upon each' bent `tlo\vnvvartlly"at'30 to conj tact 'ivith thftop surface ofthe folder `plateY .ujoon lthe;'blanlr and primary yfold and its Afoiivad jaee 28 is,roiighned-or kniirled to4 hold the Yprii'naryfold in position after dis-ly j ",e'ngaig'ein'ent bythe `Claw until'pressed down "remia @tje termal paarden and eut etrange fe-lea after he eed feld has' then danses' .the bot-' framers 26 vare actuated te make the` iipon the bed plate l (Fig. 4)while the have moved suiiiciently to overturn the endV `i-'ol"dsv they swing` inwardly y(upwardly in Higs. l and 6) to overturn the bottoni Vfold it is understood thatthel invention is not therein vsuch 'as :may oe'orr to' those 'from "the spirit of the invention. i-eiaaa;

yfiiolder;'plates Sland 4 are actua-ted to make `the main-foldsY` 14 and 1 5. By rneans of the feooentrics ll the folder plates are initially :moved towards @eich ,tlw1at1iereby. turning the end folds M (Fig. 5). After the platesr iitedfto k the details of construction herein dese 1ibefd, but 'that variou'soli'anges may be n 'a le if nilia'r' With tthe art, Without departing i. a raiding machine fer making mei-- tiefe-leek tarda having a 'primary reid gaa a Corner ofthe 'article l and seondary' folds along thek edges meeting at the co'ri'er-7 the inaohine Vliavir'ig'a bed, Vpresser?inova'ble toward and frorn the bed, andiolder plates r"inovabflef thereover `tofiorni :the secondary yrie-otecl to "one 'of the folder' plates' .ivith a siiifaoefaeingsaid oorr'ierv and arranged to vciontat with the-.stock beingpiolded, 'and a 1ol'aiv movably Connected to theV olderfplate` to move in afpredterniined pathjrelatively to fold the oofriierl offthefartile[into the anglebetweenthe felder plate and ealdsdre fade' "preliminary 'tdmovement ef the felder 2. oldirrgrriaohirie 'aoordingV to laini 1 farther eiaaraetefiaed ey means fdr pi-votally supporting' said Claw to swing` troni folding .position 'oiit of the path of lthe presser. s l

i farther ehaiaeteiazed in trlaaaeaid abataaedaearfaee and raider plate mak-e- -aa ae-me kangle Witheaeli other and V:the olav'is oon-V strliot'e'd and vinouiited to swingfits Vfolding fading madame 'aeeeidiae te dem;

edge'stibstantiallyto-the'ape of-said'angle.

4'. folding linarohine areoording to Claim *i further characterized 'in that said antrace 'ie reagheae-d te: held the 'primary f reid Lan position/by 'fr-#eeen falter the @law terre- 1 f edges meeting 'at the eerder, tire iiiahine 1L- havirig afbed, a presser movabletowanda-1rdvv from the bed, Afoldsr ilateshriiov'able therecver to termine see-dndary feld-s, ebayaeterized by an abiltnieiitr'e'onnete'tl Etio tine Y ofthe folder plates vt/ith 4a siirfao'e 'aoing said eorn'era'rid a Claw inov'aoly 'Connected vto the plate to'iirove in apredeterrniied path relatively to ,said abiitinent, :thereby to V'i'old the corner loff'the article into :the alijgle be- Y tween 'the folder plate and `aard 'adr-face preliminary to folding movement `of the folder plates, anda resilient means for returning said claw to normal position.

6. A folding machine for making n'iortselock folds having a primary fold at a corner of the article and secondary folds along Y the edges meeting at the corner, the machine having a bed, a presser movable toward and .from the bed, and folder plates movable 7 A folding machine for making m-ortisel lack folds having a primary fold at a'corner of the art-iclevand secondary foldsv along the edges meeting atthecorner,' the machine,

having a bed, a presser movable toward and c from the bed, and folder plates movable thereover characterized by an abntmerf;y connected to one of the folder plates with av Y surface face engaging with the folder'plate5 anda movable member adapted to swing to the" point Where the surface-face and folder plate meet.

Signed by twenty-fifth day of November 1925*.

l SANFORD L. 'oLUVETVmp me at TroyfNevv York, this y 

